TrailVerse for Claude
Connect Claude to live National Park Service data for all 470+ NPS sites — plus day-by-day trip planning for any US destination.
Install in ClaudeWhat You Get
Five MCP tools on the same server as the ChatGPT app. Park details, search, compare, and events cover the NPS catalog; Plan a trip also works for state parks, cities, and road trips — grounded in live data, not stale training answers.
Plan a Trip
Day-by-day itineraries for any US destination — NPS parks, state parks, cities, and road trips — with constraint-aware planning and live context when available
Park Details
For NPS sites: live weather, 5-day forecast when available, alerts, entrance fees, hours, campgrounds, permits, and activities
Compare Parks
Side-by-side comparison of 2–4 NPS parks with auto-computed highlights on weather, crowds, fees, and activities
Search Parks
Find NPS sites by state, activity, or free-text query across the full catalog
Find Events
Ranger programs, guided tours, and park-hosted events at NPS sites with dates and locations
Multi-Turn Planning
Refine and extend plans across messages — "now add day 4" just works
Real Conversations, Real Data
TrailVerse gives Claude live NPS data — road closures, weather, crowds, fees — plus constraint-aware itineraries for any US destination when you use Plan a trip.
Plan a Trip
Live conditions check
Claude pulls real-time road closures and alerts before planning — Tioga Road and Glacier Point Road are closed, so it routes around them automatically.
Actionable itinerary
Packing lists based on real weather, driving time warnings, and Google Maps links for each day of your trip.
Compare Parks
Side-by-side with live data
Real-time temperature, crowd levels, entry fees, and top activities pulled from both parks at once.
Opinionated recommendation
Not just data — Claude picks the better option for your situation with kid-friendly trails, heat risk, and specific reasons why.
Search & Park Details
Browse parks by state
Ask “what parks are in Washington state?” and get all 17 NPS sites — ranked with insider takes on what makes each one worth visiting.
Deep dive on any park
“Tell me more about Olympic” pulls live weather, active road closures, fire impacts, and current conditions — not stale training data.
Find Events
Ranger programs and special events
Daily ranger talks, guided rim walks, comedy nights, and film screenings — with times, locations, and whether they’re free.
Context when there’s nothing scheduled
No events? Claude explains why and suggests what you can still do — self-guided stops, dark sky windows, and heat safety tips.
Install in Under a Minute
Claude.ai
Pro / Max / Team / Enterprise
- 1Open Settings → Connectors
- 2Click “Add custom connector”
- 3Name: TrailVerse, URL: paste from below
- 4Click Add — TrailVerse tools appear in your conversation
Requires Pro, Max, Team, or Enterprise plan. Free plan users cannot add custom connectors.
Claude Code
CLI
Run this command in your terminal to add TrailVerse as a user-scoped MCP server:
After adding, TrailVerse tools will be available in every Claude Code session. You can verify with:
Free to use with generous tool limits. Save trips and use the Plan Workspace on TrailVerse.com. Using ChatGPT instead? Open the TrailVerse ChatGPT app
Example Prompts
Once installed, try asking Claude any of these.
“Plan a 5-day trip to Yellowstone in September with my fiancée”
“Plan a 3-day Valley of Fire State Park trip for easy hikes and photography”
“Compare Zion and Grand Canyon for a family trip in June”
“What national parks are in Washington state?”
“Are there star parties at Bryce this month?”
“Plan a San Diego weekend with beach time and a day in Joshua Tree”
Your Data, Transparently
What leaves Claude
When you use a TrailVerse tool, Claude sends the tool parameters (park name, state, dates, your trip request) to our server. For multi-turn trip planning, the messages within that planning session are sent to enable follow-ups like “now add day 4.” Sessions expire after 2 hours. No Claude account data, billing info, or unrelated conversation history is transmitted.
What we log
We log tool calls (park code, timestamp) for rate limiting and reliability monitoring. No personally identifiable information is stored. Logs are retained for 30 days.
Data source
NPS catalog data from the National Park Service API (nps.gov) and weather from OpenWeatherMap. Non-NPS trip planning may also use live web context. We do not sell or share any data.
Limits
Free to use with generous tool limits. Park details, search, compare, and events cover the NPS catalog; Plan a trip also works for state parks, cities, and road trips. For saved trips, PDF export, and the visual Plan Workspace, use Trailie on the website.
Ready to explore?
Install TrailVerse in Claude — live NPS data from 470+ sites and trip planning for any US destination.
Using ChatGPT instead? Open the TrailVerse ChatGPT app